Car-roof.



W. D. THOMPSON.

GAR ROOF.

APPLICATION FILED JUNE 11, 1909.

Patented iipr. 30, 1912.

UNITED STATES PATENT orFioE.

WILLIAM I). THOMPSON, OFDETBOI'I, MICHIGAN, ASSIGNOR TO HUTCI-IINS GAR ROOFING COMPANY, JF-I)ETB.C7I'I, MICHIGAN, A CORPORATION OF MICHIGAN.

can-noon;

. Q 7 Application filed June 1 1, 1909.1 SerialNo. 501,612.

To all whom it may concern:

Be it known that 1, WILLIAM D. THOMP- sox, a citizen of the United States of America,residing at Detroit, in the county of Wayne and State of Michigan, have in vented certain new and useful Improvements in Car-Roofs, ofwhich the following is a specification, reference being had therein to the accompanying drawings.

The invention relates particularly to an all-metal freight car roof wherein the roofing boards are entirely dispensed with, and it consists in the novel and simple construction of the roof, in the peculiar arrangement and combination of parts, and in va' rio-usdetails of construction as will be more fully hereinafter set'forth.

The single figure illustrating my invention is a'perspective view of the car roof,

with some of the parts in section and some broken away to more fully illustrate the construction.

The reference-letter A designates a substructure upon which the metal roofing or covering is supported. It is composed of the usual wooden purlins B and trough-v shaped metallic oarlines C. In this instance I have shownthe latter .as extending entirely across the roof from eave to cave, this being the preferable form. At their lower ends the carlinesv are provided with depending flanges or plates D that are adapted to be secured in any suitable manner to the car side or plate. I

Arranged preferably upon each side of the several carlines is a series of support ing strips E, extending transversely as shown beside the carline and adapted tov form a lateral extension therefor to receive and support the edge of the metallic sheet.-

tions of each purlin, as shown, in which the ends of the strips-rest, the. recesses being of a depth to bring the 'top of the supporting strip flush with the top of-the purlin strip, as above pointed out. The unbroken portion of the. purlin intermediate the strip ends isdesignated'by the reference-letter b.

Patented Apr. 30, 1912.

Thismethod of construction, while permitting the strips to lie flush" in the. desired planner, 'does'not seriously weaken the pins ins.-

31* represents the metallic sheetsf'arrangd in" longitudinal-series edge to edge uponth'e purlins, each sheet. overlapping at its side edge the series of supporting strips adjoining the carline. The side edges of the sheets are provided preferably with upstanding flanges G designed to abut against the upstanding flange or flanges upon the carline,

and H represents a plurality of transversely arranged cap plates extending over the carline' and sheet flanges at their side edges inclcsing' the joint. The cap plates are preferably provided with lateral flanges 1 that when the caps are in place rest upon the sheet bodies, as plainly indicated. At the sheet ends adjoining the ridge, upstanding flanges J are provided similar to. the side flanges described.

by suitable ridge plates, as K, conforming in configuration substantially to the caps 1.

These are covered Any suitable cap, as L, may be employed-to cover the joint at the intersection of the plates at the ridge, Tliemetallic sheets terminate at their lower ends in downwardly turned flanges M adapted to be secured to the car side, and the caps Iin similar flanges 0 also adapted to be secured to the car side .and projecting preferably below the plate flanges, as indicated.

What I claim as niy invention 1s, 1, In a car roof, a substructure comprlsing 'purlins and trough-shaped carlines, of

supporting strips independent and arranged upon opposite sides of each carline, forming lateral extensions therefor, the strips being arranged in a number of transverse s eries upon the purlins and flush with their tops, and roofing plates upon the purlins overlapping at their side edges the support ing strips- 2. In a car roof, the combination with, a series of wooden purlins, of a V met-allic troughshaped carline, a plurality of Wooden supporting strips extending transversely of the purlins beside the oarl-ine, and

lying flush WitE'the ,purlintops, the strip ends restingfwithin recesses formed within the ,purlins,-and therecessesfor adjoining.

strip ends being spaced, leaving unbrokenportions .ef the purlinsintermediatethe strips, and a roofing sheet overlapping at its side edge the supporting strips.

3. In a car root the eornblnation wlth a 'sul strueture con'iprising purlins and carlines formed with upstanding flanges thereon, of supporting strips independent of and adjoining the earlines forlning'lateral extensions therefor, and roofing plates upon the purlins overlapping at their side edges the supporting strips.

4. In a car roof, the combination with a substructure comprising purlins and carlines, of independent supporting strips arranged adjacent the carlines and having their upper faces in the plane of the upper face of the purlin, and roofing plates resting upon said purlins and said strips.

5. In a car roof, the combination with the cal-lines and the purlins, of supporting strips extending between the purlins inde pendent of and adjoining the car-lines, and roofing plates resting upon the supporting strips.

In testimony whereof I afiix my signature in presence of two Witnesses.

i WILLIAM D. THOMPSON. 

